public void OnJoinLog(
long leadershipTermId,
int commitPositionId,
int logSessionId,
int logStreamId,
string logChannel)
{
_activeLogEvent = new ActiveLogEvent(
leadershipTermId, commitPositionId, logSessionId, logStreamId, logChannel);
}
private void JoinActiveLog()
{
CountersReader counters = aeron.CountersReader();
int commitPositionId = _activeLogEvent.commitPositionId;
if (!CommitPos.IsActive(counters, commitPositionId))
{
throw new ClusterException("CommitPos counter not active: " + commitPositionId);
}
Subscription logSubscription = aeron.AddSubscription(_activeLogEvent.channel, _activeLogEvent.streamId);
_consensusModuleProxy.Ack(CommitPos.GetLogPosition(counters, commitPositionId), ackId++, serviceId);
Image image = AwaitImage(_activeLogEvent.sessionId, logSubscription);
heartbeatCounter.SetOrdered(epochClock.Time());
_activeLogEvent = null;
logAdapter = new BoundedLogAdapter(image, new ReadableCounter(counters, commitPositionId), this);
Role((ClusterRole)roleCounter.Get());
foreach (ClientSession session in sessionByIdMap.Values)
{
if (ClusterRole.Leader == role)
{
if (ctx.IsRespondingService())
{
session.Connect(aeron);
}
session.ResetClosing();
}
else
{
session.Disconnect();
}
}
}
private void CheckForReplay(CountersReader counters, int recoveryCounterId)
{
if (RecoveryState.HasReplay(counters, recoveryCounterId))
{
AwaitActiveLog();
int counterId = _activeLogEvent.commitPositionId;
using (Subscription subscription = aeron.AddSubscription(_activeLogEvent.channel, _activeLogEvent.streamId))
{
_consensusModuleProxy.Ack(CommitPos.GetLogPosition(counters, counterId), ackId++, serviceId);
Image image = AwaitImage(_activeLogEvent.sessionId, subscription);
ReadableCounter limit = new ReadableCounter(counters, counterId);
BoundedLogAdapter adapter = new BoundedLogAdapter(image, limit, this);
ConsumeImage(image, adapter);
}
_activeLogEvent = null;
heartbeatCounter.SetOrdered(epochClock.Time());
}
}